Abrowser ( Firefox) 24 - solution for non working mp4 video

I find that abrowser just will not let me login to disqus, whereas Midori does.

Is there some security setting preventing such logins?

I installed the -bad and -ugly gstreamer plugins from the repo and when I go to http://beta.html5test.com/ the audio seems to be good (with AAC and MP3) but H264 doesn't show up as active. Am I missing a gstreamer package?

Updated:

I had to install the -ffmpeg package for gstreamer which enabled H264. I figured -ugly would work since it had x264 as a dependency but the -ffmpeg package was needed.

I don't know if I can just use the -ffmpeg package and not have the others (like -bad and -ugly) but I will leave installed for now.

dadix, thank you for sharing this about:config setting...
1. write: about:config in the search bar
2. write in search: media.gstreamer.enabled and set from "false" to "true"
3. restart Abrowser
* I was afraid Bandcamp and Magnatunes had decided to stop supporting non-flash streaming music. All is again right in my world! :)

I'm using Firefox 27 (Nightly UX) and now it's support Gstreamer by default. :-)

Video
+6 bonus points 21/30
video element Yes ✔
Subtitle support No ✘
Poster image support Yes ✔
MPEG-4 support No ✘
H.264 support Yes ✔
Ogg Theora support Yes ✔
WebM support Yes ✔

Audio
+6 bonus points 20
audio element Yes ✔
PCM audio support Yes ✔
AAC support Yes ✔
MP3 support Yes ✔
Ogg Vorbis support Yes ✔
Ogg Opus support Yes ✔
WebM support Yes ✔

For a faster response of webm, mp4 , and other plugins:
Enter in:

"about:config"
look for: "click_to_play" and switch to "true".